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Farklı Miktarlarda Seryum ve Silisyum İçeren Alüminyum Alaşımlarının Karşılaştırılması
2020
Journal:  
Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi
Author:  
Abstract:

Bu çalışmanın amacı, özellikle yüksek sıcaklık uygulamalarında sınırlı seviyede kullanılabilen ticari Al-Si alaşımlarına iyi bir alternatif olabilecek Al-Ce alaşımlarının sentezlenmesi ve mikroyapısal açıdan incelenmesidir. Bu kapsamda ticari olarak Al-9Si Al-12,5Si ve Al-18Si (ağırlıkça % Si) alaşımlarıyla, Al-13,5Ce, Al-18Ce ve Al-27Ce (ağırlıkça % Ce) alaşımları karşılaştırılmıştır. Al-Si alaşımlarında α-Al, ötektik Al-Si, birincil Si yapıları, Al-Ce alaşımlarında ise α-Al, ötektik ince Al11Ce3 ve birincil kaba Al11Ce3 intermetalik parçacıklarının olduğu tespit edilmiştir. Al-Ce alaşımı içerisine katkılandırılan Ce miktarı artışına bağlı olarak ötektik Al11Ce3 fazı azalırken, kaba Al11Ce3 intermetalik yapılarının miktarı ve iriliği artmaktadır. Alaşım içerisine katkılandırılan alaşım elementleri miktarının artışı, alaşımların sertlik değerlerini arttırmıştır. Bu iki alaşım grubunun sertlik değerleri karşılaştırıldığında Al-Si alaşımlarının sertlik değerleri Al-Ce alaşımlarından daha yüksek olduğu tespit edilmiştir.

Keywords:

Comparing aluminum alloys containing serum and silicon in different amounts
2020
Author:  
Abstract:

The aim of this study is to synthesize and study Al-Ce alloys, which can be a good alternative to commercial Al-Si alloys, especially in high temperature applications, which can be used at a limited level. Commercially compared Al-9Si Al-12,5Si and Al-18Si (weight percent Si) alloys, Al-13,5Ce, Al-18Ce and Al-27Ce (weight percent Ce) alloys. Al-Si alloys contain α-Al, ethetic Al-Si, primary Si structures, and al-Ce alloys contain α-Al, ethetic thin Al11Ce3 and primary crude Al11Ce3 intermetal particles. Due to the increase in the amount of Ce added to the Al-Ce alloy, the ecetic Al11Ce3 phase decreases, while the amount and irility of the crude Al11Ce3 intermetal structures increases. The increase in the amount of alloy elements added to the alloy has increased the hardness values of the alloys. When comparing the hardness values of these two alloys, it has been found that the hardness values of Al-Si alloys are higher than Al-Ce alloys.

Keywords:

Comparison Of Different Amount Of Cerium and Silicon In Aluminum Alloys
2020
Author:  
Abstract:

The aim of this study is the synthesis and the microstructural investigation of Al-Ce alloys, which can be a good alternative to commercial Al-Si alloys that can be used at a limited level especially in high temperature applications. Within this context, commercially available Al-9Si, Al-12.5Si and Al-18Si (wt. % Si) alloys and Al-13.5Ce, Al-18Ce and Al-27Ce (wt. % Ce) alloys were compared. While α-Al, eutectic Al-Si, primary Si structures were observed in Al-Si alloys; α-Al, eutectic fine Al11Ce3 and primary coarse Al11Ce3 intermetallic particles were identified in Al-Ce alloys. In addition, while Al11Ce3 phase decreased depending on the increase of added Ce amount in Al-Ce alloy, the amount and size of coarse Al11Ce3 intermetallic structures increased. The increase in the amount of alloying elements added to the alloy increased the hardness values of the alloys. When the hardness values of these two alloys group were compared, it was observed that the hardness values of Al-Ce alloys were lower than that of Al-Si alloys.

Keywords:

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Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi

Field :   Fen Bilimleri ve Matematik; Mühendislik

Journal Type :   Ulusal

Metrics
Article : 528
Cite : 652
2023 Impact : 0.174
Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi